210810520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{673}}^1$

素因数の和:916

約数の個数: 64

約数和(自身を含む): 489162240

約数和(自身を除く): 278351720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 191, 205, 328, 382, 410, 673, 764, 820, 955, 1346, 1528, 1640, 1910, 2692, 3365, 3820, 5384, 6730, 7640, 7831, 13460, 15662, 26920, 27593, 31324, 39155, 55186, 62648, 78310, 110372, 128543, 137965, 156620, 220744, 257086, 275930, 313240, 514172, 551860, 642715, 1028344, 1103720, 1285430, 2570860, 5141720, 5270263, 10540526, 21081052, 26351315, 42162104, 52702630, 105405260, 210810520]

約数ペア:

[(1, 210810520), (2, 105405260), (4, 52702630), (5, 42162104), (8, 26351315), (10, 21081052), (20, 10540526), (40, 5270263), (41, 5141720), (82, 2570860), (164, 1285430), (191, 1103720), (205, 1028344), (328, 642715), (382, 551860), (410, 514172), (673, 313240), (764, 275930), (820, 257086), (955, 220744), (1346, 156620), (1528, 137965), (1640, 128543), (1910, 110372), (2692, 78310), (3365, 62648), (3820, 55186), (5384, 39155), (6730, 31324), (7640, 27593), (7831, 26920), (13460, 15662)]